The barcode gene sequences should show less intraspecific gene variation than interspecific variation, contain conserved flanking regions and have a short length.
The three most important constraints to explore the suitability of a nucleotide sequence in order to be used as a DNA barcode for taxonomic identifications are:
Barcode gene sequences show less genetic variation within species (intraspecific variation) than between species (interspecific variation).Barcode sequences also show conserved flanking regions in order to be amplified in all species to be identified/categorized.Barcode sequences have short lengths due to technical constraints (amplification by PCR is ideal no more than 1000 base pairs).For example, in animals, an excellent barcode gene sequence used for taxonomic identification is the Cytochrome Oxidase I (COI) gene because this sequence can be used across the evolutionary spectrum.
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Examine the Punnett square below. A cross between the two parents results in 50 offspring. How many of the offspring are most likely to have the dominant trait?
The dominant trait for flower color in pea plants is purple (P) and the recessive trait is white flowers (p). What is the phenotype of a plant with the alleles, Pp?
GIVING BRAINLIEST AND THE REST OF MY POINTS!!!! :)
What life cycle adaptation does the desert gold poppy have that helps it reproduce and survive in its dry desert environment?
A) It produces large amounts of spores.
B) It only produces seeds in the summer when it is driest.
C) Its seeds stay dormant until there is enough precipitation for them to grow.
D) It can produce seeds all year round that can grow in dry and wet conditions.
How do the nutrients in soil cause problems when erosion relocates the soil to ponds or lakes?
They cause algae to reproduce rapidly causing algae blooms.
They poison the microorganisms that break down dead organic matter in the ponds or lakes.
They poison the fish in the ponds or lakes.
They change the color of the water and reduce aquatic photosynthesis.
A) They cause algae to reproduce rapidly causing algae blooms.
Describe the role of (A) bacteria fixing nitrogen as they live symbiotically with some plant species, (B) nitrifying bacteria, and (C) denitrifying bacteria in the nitrogen cycle.
I think It is A what is the question?
Explanation:
Examine the graph showing a comparison of transportation and emissions trends in the United States over the years 1980-2015.
Which statement best describes the trend for the six common pollutants, as shown in the graph?
A)
B)
The Clean Water Act addressed the six major pollutants that were
damaging the ecosystems.
The decline in vehicle miles traveled and US population correlates with a
drop in air pollution
The 1990 amendments to the Clean Air Act addressed the sources of acid
rain, smog, and toxic air pollutants.
A conversion to 100% renewable resources for energy harnessing and
electricity production caused a reduction in air pollution.
C)
D)
Which were once eaten as a means of treating tooth aches: A) worms, B) spiders, or C) cockroaches?
Answer: hi I 4 my broter wa in thi ap
Explanation:
Answer:
I believe it is C
Explanation:
I hope this helps!
First to answer gets brainliest!!!!!
For this scenario, determine if it is a Harmful, Neutral or beneficial mutation.
NO LINKS OR BAD ANSWERS!!!!!
Answer :Neutral
Explanation: Ability keeps them from growing over 4 feet. but does prevent Alzheimer's,diabetes,and cancer
People who have leukemia, cancer that affects white blood cells, are often given Cytarabine. This drug inhibits the synthesis of DNA. Which phase of the cell cycle is most affected by Cytarabine?
what is sodium E621 know as MSG is
Answer:
MSG is short for monosodium glutamate. It is common food addictive-with the e-number E621 that is used to enhance flavor.
Explanation:
MSG is derived from the amino acid glutamate or glutamic acid, which is one of the most abundant amino acids in nature.
Why do cells need to undergo meiosis
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. ... Meiosis begins following one round of DNA replication in cells in the male or female sex organs.
(a) Part A Which claim is best supported by the data?
A)As annual precipitation increases, the populations of Species A and B increase.
B)As annual precipitation increases, the populations of Species A and B decrease.
C)As annual precipitation increases, the population of Species A increases while Species B decreases.
D)As annual precipitation increases, the population of Species A decreases while Species B increases.
Part B If the precipitation levels observed in year '09 remain the same and other resources remain constant, identify and describe what can be predicted to occur with the population of Species B over the next 6 years? Enter the answer in the box.
Answer:
D
Explanation:
It increases
The claim is best supported by the data is as annual precipitation increases, the populations of Species A and B decrease. Thus, option B is correct.
When annual precipitation increases according to the data?
As annual precipitation increases, the populations of Species A and B decrease. As annual precipitation increases, the population of Species A increases while Species B decreases. As annual precipitation increases, the population of Species A decreases while Species B increases.
As annual precipitation increases, the populations of Species A and B increase. As annual precipitation increases, the population of Species A decreases while Species B increases.
If the precipitation levels observed in year '09 remain the same and other resources remain constant, identify and describe what can be predicted to occur with the population of Species B over the next 6 years.
Therefore, The claim is best supported by the data is as annual precipitation increases, the populations of Species A and B decrease. Thus, option B is correct.
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Include at least 3 ways that illegal fishing impacts the environment and descriptions
Answer:
Goodluck. I hope I helped
Explanation:
Oceans support the livelihoods of an estimated 520 million people who rely on fishing and fishing related activities, and 2.6 billion people who depend on fish as an important part of their diet. But Illegal fishing is threatening the food supply of coastal communities as fish populations decline due to overfishing in areas fishers are not permitted to access. Addressing illegal fishing will positively contribute to the equitable growth and empowerment of the people who rely on oceans for food and income.
Which of the following statements about coral reefs is TRUE?
O Coral reefs are generally less than ten years old.
o Coral reefs contain a great diversity of life and species.
O Coral reefs cover most of the world's ocean floor.
O Coral reefs contain very few species other than fish.
Answer:
The correct answer is "Coral reefs contain a great diversity of life and species." as while they cover 1% of the ocean floor, they are homes to more than 25% of marine life.
Explanation:
The following statements about coral reefs are true: "Coral reefs contain a great diversity of life and species." That is the second option, as the coral reefs are among the most diverse and biologically rich ecosystems on the planet.
What is the importance of coral reefs to the ecosystem?The coral reef is a type of structure that forms large, interconnected structures, creating a habitat for a wide range of other species, such as fish, crustaceans, and mollusks, and the reef provides shelter and food for a diverse array of organisms. Coral reefs generally occur in warm waters along the coasts of tropical and subtropical areas, so climate change harms them.
Hence, the following statements about coral reefs are true: "Coral reefs contain a great diversity of life and species." That is the second option, as the coral reefs are among the most diverse and biologically rich ecosystems on the planet.
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Helicase is an enzyme responsible for unwinding the double helix of the DNA by breaking apart the hydrogen bonds between each of the base pairs. Which phase of the cell cycle is helicase most likely active?
A) S
B) М
C) G1
D) G
Helicase is an enzyme responsible for unwinding the double helix of the DNA by breaking apart the hydrogen bonds between each of the base pairs. Helicase is more active in the S phase of the cycle. Option A is the correct answer.
What are the events of the cell cycle?
The cell cycle consists of the interphase and the cell division phase, where the cell division takes a little time in comparison to the interphase. The parent cell spends the majority of its time in the cell cycle's interphase and less time in the cell division phase.
There are three phases in the cell cycle's interphase: G1, S, and G2. The cell grows in both the G1 and G2 phases, while the DNA replicates in the S phase.
Hence, helicase is an enzyme that is responsible for unraveling the double helix of DNA by breaking apart the hydrogen bonds between each base pair. Helicase is more active in the S phase of the cell cycle. Option A is the correct answer.
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THIS IS EARTH SCIENCE
PLEADE ASNWER THE Two QUESTIONS IN THE PICTURE
How do ocean currents affect the coastal regions of S.America at 20 degrees south latitude
When a lake freezes over. How does the energy content of the lake change?
Answer:
Explanation:The remaining air (air that does not descend at 30 degrees North or South latitude) continues toward the poles and is known as the westerly winds, or westerlies
How are the functions of a carbohydrate and a lipid similar?
A. Both are a source of energy.
B. Both are replicated during meiosis.
C. Both lower the activation energy of reactions.
D. Both dissolve nutrients in the digestive system.
How can the appearance of white baby rabbits be explained when the mother has white fur, and the father has black fur?
Explanation:
because the baby rabbit took after its mother and the
Which of the following is a large artery that pushes oxygenated blood away from the heart to the rest of the
body?
O Pulmonary artery
O Superior Vena cava
Aorta
Pulmonary Vein
Sound waves move the slowest through which medium? water ice air wood
Answer: The answer is the following.
the question is: sound waves move through which medium?
a. water
b. ice
c. air
d. wood
the best answer to this question would be c. air. <3
Explanation:
The Speed of Sound: Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solids. Air is a gas so therefore, C. AIR IS THE CORRECT ANSWER :)
The sound waves move the slowest through which medium:
C.Air
The sound waves move the slowest through which medium is air. Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solids.Therefore, the correct option is C.
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Drag one of the nucleotides to a corresponding nitrogenous base on one of the two strands. What is
the role of DNA polymerase in this process?
Answer:
This enzyme is responsible for the production of DNA molecules from RNA molecules.
Explanation:
DNA polymerase is a type of enzyme that produces DNA molecules from RNA molecules. The enzymes play a vital role in the replication of DNA in which the enzyme produces two identical copies of DNA from one original DNA molecule. This replication of DNA is very important for cell division as well as growth of the organisms. Without this replication, no mitosis occurs in the body that leads to no growth of the organism so we can say that this enzyme plays a great role in growth of an organism.
The process of the formation of the new from the old DNA is called is replication.
The enzyme responsible for the formation of DNA replication is DNA polymerase.
The things required in the formation of new DNA is as follows:-
DNADNA polymeraseDNA ligaseThe function of the DNA polymerase during the time of DNA replication is to get the nucleotide as a monomer to join together by the DNA ligase. The nucleotide joins together in the 5' to 3' direction.
The drag of one nucleotide from the sequence leads to the mutation. These lead to the form of the infected protein and form the abnormal character.
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The fact that choanoflagellates and collar cells of sponges resemble each other supports the inference that ________. Group of answer choices choanoflagellates are animals choanoflagellates are more closely related to sponges than they are to protists choanoflagellates and sponges evolved similar cell structures through convergent evolution choanoflagellates and sponges are sister groups
Answer:
choanoflagellates and sponges are sister groups
Explanation:
The choanoflagellates are small unicellular organisms belonging to the Protista kingdom. These microorganisms are collared flagellates morphologically similar to the choanocyte cells of animal sponges, which have a central flagellum surrounded by a collar of microvilli. In consequence, it has been suggested that choanoflagellates may represent the closest living relatives of primitive metazoans (i.e., they are sister groups to sponges). This hypothesis has recently been supported by both molecular phylogenetic and comparative genomic analyses.
Earth science question. Please help
Answer:
answer choice 4, more rain and a steeper slope cause it to flow faster
Explanation:
Find the measure of 3.
Which organ is shaped like a small balloon and is located in the space between your hip bones
Answer:
bladder
Explanation:
Answer:
Bladder
Explanation:
The Bladder is shaped like a small balloon and is located in the space between your hip bones
Why do scientists carry out experiments?
A.
Because scientific knowledge is based on observations

B.
Because scientific knowledge is full of untested theories

C.
Because scientists like to control variables

D.
Because scientists like to work in labs
Answer:
A
Explanation:
the scientist always makes a hypothesis
nutrients are transported to the organs of the bloodstream by which system
Answer:
The blood circulatory system delivers nutrients and oxygen.
Explanation:
State one way by which Carbon Dioxide decreases in the atmosphere
Answer:
The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.
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How does the motion of particles in a gas change as the gas cools? (1 point)
They move more slowly.
b
They move in a more circular pattern.
ос
They move faster.
d
They move more randomly.
helppppp plzzzzzzzzzzzz
Answer:
The answer is A.
Explanation:
The question is asking how the moon phase changes from a new moon to a full moon. You can see on the Picture that when it is a full moon, the order from left to right is Sun, Earth, and Moon.